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Finding the Fourth Proportional to 271,972.92, 375,321.42 and 151,133.88

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Solution

The fourth proportional to 271,972.92, 375,321.42 and 151,133.88 is: 208,564.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,972.92 : 375,321.42 = 151,133.88 : x
  2. Step 2: Convert to fraction form
    271,972.92/375,321.42 = 151,133.88/x
  3. Step 3: Cross multiply
    271,972.92x = 375,321.42 × 151,133.88
  4. Step 4: Simplify right side
    271,972.92x = 56,723,782,451.71
  5. Step 5: Solve for x
    x = 56,723,782,451.71/271,972.92
  6. Step 6: Final answer
    x = 208,564.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.